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82972396 = 22131595623
BaseRepresentation
bin1001111001000…
…00111011101100
312210010102201201
410330200323230
5132220104041
612122215244
72025153013
oct474407354
9183112651
1082972396
1142921431
1223954524
13142612c0
14b03ba7a
15743e631
hex4f20eec

82972396 has 12 divisors (see below), whose sum is σ = 156371152. Its totient is φ = 38294928.

The previous prime is 82972369. The next prime is 82972403. The reversal of 82972396 is 69327928.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797760 + ... + 797863.

Almost surely, 282972396 is an apocalyptic number.

It is an amenable number.

82972396 is a deficient number, since it is larger than the sum of its proper divisors (73398756).

82972396 is a wasteful number, since it uses less digits than its factorization.

82972396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595640 (or 1595638 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 82972396 is about 9108.9184868457. The cubic root of 82972396 is about 436.1587041134.

The spelling of 82972396 in words is "eighty-two million, nine hundred seventy-two thousand, three hundred ninety-six".

Divisors: 1 2 4 13 26 52 1595623 3191246 6382492 20743099 41486198 82972396